My only remaining problem now that my EGR problem has been solved is this: '99 Duratec V6 92000 miles, ATX. When the outside temperature exceed 95 degrees and the A/C is on, the temp gauge starts creeping into the higher ranges which forces me to turn off the A/C. I can sit and idle for over an hour with my A/C on with no problems, but when I start to move is when the temp gauge creeps up. I've already tested the coolant. Any ideas on this one? Thanks!